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Akhavanfoomani, Aria. "Derivative-free stochastic optimization, online learning and fairness". Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAG001.
Pełny tekst źródłaIn this thesis, we first study the problem of zero-order optimization in the active setting for smooth and three different classes of functions: i) the functions that satisfy the Polyak-Łojasiewicz condition, ii) strongly convex functions, and iii) the larger class of highly smooth non-convex functions.Furthermore, we propose a novel algorithm that is based on l1-type randomization, and we study its properties for Lipschitz convex functions in an online optimization setting. Our analysis is due to deriving a new Poincar'e type inequality for the uniform measure on the l1-sphere with explicit constants.Then, we study the zero-order optimization problem in the passive schemes. We propose a new method for estimating the minimizer and the minimum value of a smooth and strongly convex regression function f. We derive upper bounds for this algorithm and prove minimax lower bounds for such a setting.In the end, we study the linear contextual bandit problem under fairness constraints where an agent has to select one candidate from a pool, and each candidate belongs to a sensitive group. We propose a novel notion of fairness which is practical in the aforementioned example. We design a greedy policy that computes an estimate of the relative rank of each candidate using the empirical cumulative distribution function, and we proved its optimal property
Nicholls, Angela. "Early modern English almshouses in the mixed economy of welfare c. 1550-1725". Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/62710/.
Pełny tekst źródłaBateman, James. "Virtual patient design in undergraduate education". Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/62110/.
Pełny tekst źródłaHall, Benjamin. "Plant pathogen effector proteins and their host targets : functional studies and manipulation to generate enhanced resistance". Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/62310/.
Pełny tekst źródłaRybaczuk, Krysia. "Error processes in the integration of digital cartographic data in geographic information systems". Thesis, Durham University, 1992. http://etheses.dur.ac.uk/6210/.
Pełny tekst źródłaChowdhury, Soumyadeb. "Exploring the memorability of multiple recognition-based graphical passwords and their resistance to guessability attacks". Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/6210/.
Pełny tekst źródłaPáez, Sergio, Celeste Valdés i Daniel Velázquez. "La educación". Bachelor's thesis, Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería, 2013. http://bdigital.uncu.edu.ar/6210.
Pełny tekst źródłaFil: Páez, Sergio. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería..
Fil: Valdés, Celeste. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería..
Fil: Velázquez, Daniel. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería..
Alberti, Paolo. "Analisi per via simulativa del protocollo tcp a ritrasmissione asimmetrica anticipata su wifi". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6210/.
Pełny tekst źródłaCocchi, Stefania <1970>. "Caratterizzazione biomolecolare delle neoplasie lipomatose". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6210/.
Pełny tekst źródłaAmong the liposarcomas, the atypical lipomatous tumor/well-differentiated liposarcoma and dedifferentiated liposarcoma subtypes are more frequent. It is often difficult to distinguish these from other tumors with similar morphological characteristics. The cytogenetic hallmark of these tumors is he presence of supernumerary chromosomes and giant ring chromosomes which consist mainly of amplified sequences of the region 12q13-15. In this region mapped several genes including the gene MDM2 ( murine double Minute-2). The molecular characterization of these subtypes becomes extremely important both for diagnostic purposes and for a correct therapeutic approach , especially today, after the introduction into clinical practice of targeted biological therapies (targeted therapies). In the present study is analyzed the role of FISH analysis for the evaluation of the MDM2 status in lipomatous neoplasms and to determine whether this marker could be used in the differential diagnosis of these tumors. Although this study confirms the diagnostic utility of MDM2 amplification in the diagnosis of atypical lipomatous tumor/well-differentiated liposarcoma and dedifferentiated liposarcoma, this marker could have in the future a wider application . Given the recent introduction of selective inhibitors of MDM2 such research is important not only for diagnostic purposes but also for the selection of patients who may in the future benefit from treatment with these inhibitors. This study was also performed to analyze the biological relevance of the pathway that involves the AKT gene in well-differentiated and dedifferentiated liposarcoma and to determine whether this pathway may represent a useful therapeutic target in these tumors . The data obtained demonstrate that AKT is expressed and activated in all cases of atypical lipomatous tumor/well differentiated liposarcoma and dedifferentiated liposarcoma .
Lachos, Victor H., i Filidor V. Labra. "Multivariate skew-normal/independent distributions: properties and inference". Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/97108.
Pełny tekst źródłaLiu (1996) discute una clase de distribuciones robustas a las que apela como normal/independiente, y que contiene un grupo de distribuciones de colas pesadas. En este artículo desarrollamos una versión asimétrica de tales distribuciones en un escenario multivariado, a las que llamaremos distruciones normales asimétricas independientes multivariadas. Para tales distribuciones derivamos algunas propiedades. La principal virtud de los miembros de esta familia es que son fáciles de simular y se prestan a un algoritmo de tipo EM para realizar estimaciones de máxima verosimilitud de sus parámetros. Para dos modelos multivariados de interés práctico se discute el algoritmo EM con énfasis en las distribuciones t-asimétrica, slash asimétrica y normal asimétrica contaminada. Los resultados obtenidos a partir de simulaciones y de dos conjuntos de datos reales son reportados.
Kearney, Sean Patrick. "Integrating field and remote sensing approaches to evaluate ecosystem services from agriculture in smallholder landscapes". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62110.
Pełny tekst źródłaLand and Food Systems, Faculty of
Graduate
Boulanger-Lapointe, Noémie. "Importance of berries in the Inuit biocultural system : a multidisciplinary investigation in the Canadian North". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62510.
Pełny tekst źródłaArts, Faculty of
Geography, Department of
Graduate
Kolesnik, Brett Thomas. "Geometry of random spaces : geodesics and susceptibility". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62610.
Pełny tekst źródłaScience, Faculty of
Mathematics, Department of
Graduate
Hong, Kwan Eui Marcel. "Structural performance of nail-laminated timber-concrete composite floors". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62710.
Pełny tekst źródłaApplied Science, Faculty of
Civil Engineering, Department of
Graduate
Lehner, Chelsea Rae. "Where do we fit in? : an explanation of the provinces' place in the Canada-US relationship and their involvement in re-negotiating NAFTA". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62810.
Pełny tekst źródłaArts, Faculty of
Political Science, Department of
Graduate
Benjamin, Rachele. "Uncertainty, regret, and psychological pain : why it hurts to be unsure". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62910.
Pełny tekst źródłaArts, Faculty of
Psychology, Department of
Graduate
Sowell, Jesse H. II (Jesse Horton). "Deficiencies in online privacy policies : factors and policy recommendations". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62110.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references (p. 111-121).
Online service providers (OSPs) such as Google, Yahoo!, and Amazon provide customized features that do not behave as conventional experience goods. Absent familiar metaphors, unraveling the full. scope and implications of attendant privacy hazards requires technical knowledge, creating information asymmetries for casual users. While a number of information asymmetries are proximately rooted in the substantive content of OSP privacy policies, the lack of countervailing standards guidelines can be traced to systemic failures on the part of privacy regulating institutions. In particular, the EU Data Protection Directive (EU-DPD) and the US Safe Harbor Agreement (US-SHA) are based on comprehensive norms, but do not provide pragmatic guidelines for addressing emerging privacy hazards in a timely manner. The dearth of substantive privacy standards for behavioral advertising and emerging location-based services highlight these gaps. To explore this problem, the privacy policies of ten large OSPs were evaluated in terms of strategies for complying with the EU-DPD and US-SHA and in terms of their role as tools for enabling informed decision-making. Analysis of these policies shows that OSPs do little more than comply with the black letter of the EU-DPD and USSHA. Tacit data collection is an illustrative instance. OSP privacy policies satisfice by acknowledging the nominal mechanisms behind tacit data collection supporting services that "enhance and customize the user experience," but these metaphors do not sufficiently elaborate the privacy implications necessary for the user to make informed choices. In contrast, privacy advocates prefer "privacy and surveillance" metaphors that draw users attention away from the immediate gratification of customized services. Although OSPs do bear some responsibility, neither the EU-DPD nor the US-SHA provide the guidance or incentives necessary to develop more substantive privacy standards. In light of these deficiencies, this work identifies an alternative, collaborative approach to the design of privacy standards. OSPs often obscure emerging privacy hazards in favor of promoting innovative services. Privacy advocates err on the other side, giving primacy to "surveillance" metaphors and obscuring the utility of information based services. Rather than forcing users to unravel the conflicting metaphors, collaborative approaches focus on surfacing shared concerns. The collaborative approach presented here attempts to create a forum in which OSPs, advertisers, regulators, and civil society organizations contribute to a strategic menu of technical and policy options that highlight mutually beneficial paths to second best solutions. Particular solutions are developed through a process of issue (re)framing focused on identifying common metaphors that highlight shared concerns, reduce overall information asymmetries, and surface the requirements for governance and privacy tools that address emerging risks. To illustrate this reframing process, common deficiencies identified in the set of privacy policies are presented along with strategic options and examples of potential reframings.
by Jesse H. Sowell, II.
S.M.in Technology and Policy
Hammond, Nathan Allen. "Mechanical behavior and microstructure of self-assembling oligopeptide gels". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62510.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references (p. 97-103).
Hydrogels have become widely used in the fields of tissue engineering and drug delivery. One class of hydrogel is formed from synthetic oligopeptides that self-assemble into a solution of beta-sheet filaments. These filaments can aggregate to form a gel suitable for culture of various cell types. Examples of such self-assembling peptides are RAD16-I, RAD16-II, and KLD-12. One limitation of self-assembling peptide hydrogels is their mechanical weakness. Herein are presented computational and experimental studies that elucidate the microstructure and mechanical behavior of these materials. Strategies to enhance their mechanical properties are also examined. Steered molecular dynamics modeling was used to characterize the mechanical interaction between filaments, and a coarse-grained model was developed to extend the system to ordinary time scales. A microindentation assay was developed and used to characterize the mechanical properties of gels. Several strategies for enhancing the gels' mechanical properties were tested. Gel microstructure was observed in thin sections of material with transmission electron microscopy, revealing in detail the loose, disorganized structure of assembled beta-sheet filaments. The results demonstrate that these self-assembling peptide gels are formed from a loosely arranged structure of beta-sheet filaments, not from dense bundles of parallel filaments as was previously proposed. Estimates of gel stiffness based on this loose structure are in approximate agreement with experimental measurements. Among the strategies tested to increase gel stiffness, introducing cross-links and increasing solid concentration proved to be effective approaches.
by Nathan Allen Hammond.
Ph.D.
Desrochers, Theresa M. "The nature of habits in the nonhuman primate : the formation of sequences of eye movements and neural activity in the frontal eye field". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/62610.
Pełny tekst źródłaThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references.
The nature of habits, their formation, expression, and underlying causes have been pondered for centuries. Early definitions, still in use today, posited that habits are actions associated with outcomes that, when repeated, become stimulus-response associations that can be performed automatically, or without the reinforcement of a rewarding stimulus. A prominent theory of what drives the process is reinforcement learning (RL). This definition and underlying theory may be inadequate to describe the complicated series of actions that we form and express as habits in every day life. We designed a task that would test the limits of RL by providing a nearly infinite number of action choices and no clear association with reward. We recorded using ~100 chronically implanted independently moveable electrodes from the frontal eye fields (FEF), prefrontal cortex (PFC), and caudate nucleus (CN) simultaneously as naïve monkeys performed a free-viewing scan task. Neural recordings began on the first day of this task where a random dot on a grid of targets was chosen to be baited with reward on every trial and the monkeys were free to look around until they captured the baited target. We found that monkeys formed selfguided and uninstructed sequences of eye movements that gradually evolved over months of task performance and did not appear to be driven by overall reward or cost measures. Only on a much smaller, trial-by-trial, time scale were we able to detect the RL forces at work and that the monkeys were minimizing cost on an extremely local level. We also found that neural units in the FEF showed standard single direction and non-standard multiple direction tuning very early in task acquisition. We also found a disproportionately high number of units whose tuning directions were selective for those eye movement combinations that were members of the monkeys' habitual sequences. This suggested that the FEF very rapidly adapts to the task at hand and the neural representation becomes biased towards those sequences that are repeated. Together these findings lay the foundation to understand natural habit formation and the neural mechanisms that underlie it.
by Theresa M. Desrochers.
Ph.D.
Alicea, José Antonio. "Dancing with the city--the Dudley Street Neighborhood Initiative and land control in Roxbury". Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/62910.
Pełny tekst źródłaHenderson, Leah. "Framework theories in science". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62410.
Pełny tekst źródła"September 2010." Cataloged from PDF version of thesis.
Includes bibliographical references (p. 127-133).
This thesis consists of three papers on the nature of scientific theories and inference. In many cases, scientific theories can be regarded as organized into hierarchies, with higher levels sometimes called 'paradigms', and lower levels encoding more specific or concrete hypotheses. The first chapter uses hierarchical Bayesian models to show that the assessment of higher level theories may proceed by the same Bayesian principles as the assessment of more specific hypotheses. It thus shows how the evaluation of higher level theories can be evidence-driven, despite claims to the contrary by authors such as Kuhn. The chapter also discusses how hierarchical Bayesian models may help to resolve certain issues for Bayesian philosophy of science, particularly how to model the introduction of new theories. The second chapter discusses the relationship between Inference to the Best Explanation (IBE) and Bayesianism. Van Fraassen has raised the concern that the explanatory considerations in IBE go beyond the Bayesian formalism, making IBE incompatible with Bayesianism. The response so far has been that the explanatory considerations can be accommodated within the Bayesian formalism by stipulating that they should constrain the assignment of the probabilities. I suggest a third alternative, which is that the extra explanatory considerations have their origins in the relationship between higher and lower level theories and can be modeled in Bayesian terms without directly constraining the probabilities. The third chapter discusses an aspect of the debate over scientific realism. The No Miracles argument and the Pessimistic Induction are often seen as the primary arguments for and against scientific realism. Yet recently it has been alleged that both of these arguments commit the base-rate fallacy. I argue that both arguments can be formulated in a non-fallacious manner, so neither should be dismissed on the grounds of faulty form alone.
by Leah Henderson.
Ph.D.
Youssef, Mostafa Youssef Mahmoud. "Probing water properties and cationic exchange in calcium-silicate-hydrate : an atomistic modeling study". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62710.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references.
Two problems related to the assessment of the performance of cementitious materials in the nuclear fuel cycle are investigated by means of atomistic simulations. The first is the structural and dynamic nature of water confined in the nano-pores of the highly disordered calcium-silicate-hydrate (C-S-H) which is the major binding phase of cement. The microscopic structure and dynamics of water confined in C-S-H have important implications on describing the cohesion and mechanical behavior of cement from its setting to its aging; nevertheless they have not been fully elucidated prior to this thesis. The second problem is the encapsulation of strontium-90, an important radionuclide, in C-S-H and its crystalline analogue tobermorite 9 A by means of cationic exchange with calcium. We showed that the nature of the interaction between the confined water and C-SH is hydrophilic. The interlayer calcium ions and the disorder in the silicate chains act synergistically to achieve this hydrophilic interaction. The water molecules ultra-confined in this hydrophilic and disordered interlayer space adopt a unique multi-range structure: at short range they are tetrahedrally coordinated but with distortions, at intermediate range they exhibit a structure similar to that of dense fluids and supercooled phases, and at ranges up to 10 A spatial correlations persist through dipole-dipole interactions that are enhanced by the directionality of the hydrogen bonds formed between the confined water and the defective silicate chains. This confined water exhibits a three-stage dynamics evidenced in the mean square displacement (MSD) results, with a clear cage stage characteristic of glassy dynamics similar to that of supercooled liquids and glass forming materials. The glassy dynamics is induced primarily because of the attractive interactions of water molecules with the calcium silicate walls, serving to constrain the motion of the water molecules at the interface, as if with an effective temperature lower than the actual simulation temperature. At intermediate time scales that correspond to the p-relaxation of glassy materials, the non-Gaussian parameter indicates a significant heterogeneity in the translational dynamics of the confined water, also consistent with the cage stage identified in the MSD of the water molecules. Strontium was shown to favor energetically substituting calcium in the interlayer sites in C-S-H and tobermorite 9 A with the trend more pronounced in the latter. The silicate chains in both cementitious waste forms were not affected by strontium substitution within our molecular dynamics simulation. Finally, we observed degradation in the mechanical properties in the strontium-containing cementitious waste form. The degradation increases with the increase of strontium concentration, but overall this degradation is not limiting for the use of C-S-H or tobermorite 9 A as candidates in immobilizing radioactive strontium.
by Mostafa Youssef Mahmoud Youssef.
S.M.
Fearing, Douglas (Douglas Stephen). "The case for coordination : equity, efficiency and passenger impacts in air traffic flow management". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62310.
Pełny tekst źródłaThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (p. 121-123).
In this thesis, we develop multi-resource integer optimization formulations for coordinating Traffic Flow Management (TFM) programs with equity considerations. Our multi-resource approaches ignore aircraft connectivity between flights, but allow a single flight to utilize multiple capacity-controlled resources. For example, when both Ground Delay Programs (GDPs) and Airspace Flow Programs (AFPs) are simultaneously in effect, a single flight may be impacted by a GDP and one or more AFPs. We show that due to the similarity with current practice, our models can be applied directly in the current Collaborative Decision-Making (CDM) environment. In the first part of the thesis, we develop these formulations as extensions of a well-studied, existing nationwide TFM formulation and compare them to approaches utilized in practice. In order to make these comparisons, we first develop a metric, Time-Order Deviation, for evaluating schedule fairness in the multi-resource setting. We use this metric to compare approaches in terms of both schedule fairness and allocated flight delays. Using historical scenarios derived from 2007 data, we show that, even with limited interaction between TFM programs, our Ration-by-Schedule Exponential Penalty model can improve the utilization of air transportation system resources. Skipping ahead, in the last part of the thesis, we develop a three-stage sequential evaluation procedure in order to analyze the TFM allocation process in the context of a dynamic CDM environment. To perform this evaluation we develop an optimization-based airline disruption response model, which utilizes passenger itinerary data to approximate the underlying airline objective, resulting in estimated flight cancellations and aircraft swaps between flight legs. Using this three-stage sequential evaluation procedure, we show that the benefits of an optimization-based allocation are likely overstated based on a simple flight-level analysis. The difference between these results and those in the first part of the thesis suggests the importance of the multi-stage evaluation procedure. Our results also suggest that there may be significant benefits to incorporating aircraft flow balance considerations into the Federal Aviation Administration's (FAA's) TFM allocation procedures. The passenger itinerary data required for the airline disruption response model in the last part of the thesis are not publicly available, thus in the second part of the thesis, we develop a method for modeling passenger travel and delays. In our approach for estimating historical passenger travel, we develop a discrete choice model trained on one quarter of proprietary booking data to disaggregate publicly available passenger demand. Additionally, we extend a network-based heuristic for calculating passenger delays to estimate historical passenger delays for 2007. To demonstrate the value in this approach, we investigate how passenger delays are affected by various features of the itinerary, such as carrier and time of travel. Beyond its applications in this thesis, we believe the estimated passenger itinerary data will have broad applicability, allowing a passenger-centric focus to be incorporated in many facets of air transportation research. To facilitate these endeavors, we have publicly shared our estimated passenger itinerary data for 2007.
by Douglas Fearing.
Ph.D.
Pinto, João Filipe Cruz Correia. "Avaliação da amplificação do gene HER 2, determinada por Fish e Sish, em casos com score 0/1 + por imunohistoquímica". Master's thesis, Instituto de Ciências Biomédicas Abel Salazar, 2010. http://hdl.handle.net/10216/62310.
Pełny tekst źródłaCorso, Giovanni. "Searching for novel diagnostic-prognostic biomarkers in gastric cancer". Doctoral thesis, Faculdade de Medicina da Universidade do Porto, 2011. http://hdl.handle.net/10216/62210.
Pełny tekst źródłaAlves, António da Silva Dias. "Avaliação da performance dos hospitais portugueses : identificação e valorização das variáveis principais". Master's thesis, Porto : Instituto Superior de Estudos Empresariais, 1994. http://hdl.handle.net/10216/62510.
Pełny tekst źródłaGewehr, André Granzotto. "Tratamento por coagulação-floculação de lixiviado bruto de aterro sanitário com e sem pré-tratamento biológico em reator sequencial em batelada". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/62110.
Pełny tekst źródłaThe form of treatment and disposal still prevalent worldwide for solid waste is the landfill, a method that generates, in addition to a solid mass residual partially stabilized, liquid and gas end products. The effluent liquid, known as leachate, requires specific treatment, due to its high harmfulness to the environment, due mainly to its high concentrations of ammonia nitrogen and organic matter in high percentage, recalcitrant. This study evaluated the treatment on bench scale, via physico-chemical process, by coagulation-flocculation, of raw leachate from Central de Resíduos do Recreio landfill (operated by Companhia Riograndense de Valorização de Resíduos), devoid of any previous treatment, and biologically pretreated leachate reactors in sequential batch reactors (SBR). For the process of flocculation-coagulation were tested polyaluminum chloride (PAC), ferric chloride, ferric sulfate and tannin. Successive stages were designed for determining dosage and optimum pH adjustment for each coagulant employed and for verifying the influence of times and gradients mixtures, as well as tested in the application of polymers flocculation auxiliaries. The answers used for parametric monitoring and evaluation of efficiencies were the true color, turbidity (with and without prior filtration), COD, sludge volume and pH. The use of sequential batch reactor aimed conventional nitrification/denitrification of the high concentrations of ammonia nitrogen and eventual oxidation of carbonaceous matter. It was found that the different gradients and mixing times tested, as well as the use of auxiliary polymers, did not produce impact on the results. The inorganic coagulants showed high removal efficiencies, especially ferric chloride, which at a dose of 1102 mgFe+3/L and initial pH adjusted to 6.2, removed 98% of the true color and filtered turbidity, 63% of COD, 40% of BOD5 and 88% of unfiltered turbidity. Despite the considerable fraction of the recalcitrance of organic matter in the leachate, the SBR2 removed 40% of COD and 60% of BOD5 of the original. The coagulation-flocculation of the effluent from SBR2 required lower dosages of coagulants in relation to the similar process with raw leachate. Ferric chloride in optimum dosage of 826 mgFe+3/L and adjusting pH to 6.3, removed 95% of color, 77% of COD, 82% of BOD5, 94% of the filtered turbidity and 92% of unfiltered turbidity. It was concluded by high technical feasibility of the process of flocculation-coagulation for the leachate with and without pre-treatment, based on the optimization of the boundary conditions of the process. The pre-treatment with SBR, when pH control, demonstrated high potential for nitrification/denitrification and oxidation of a significant portion of the carbonaceous of the raw leachate.
Bruwer, Adamus Paulus. "Modelling the effects of biogenic NOx and industrial H2S emissions on the South African Highveld and Waterberg regions". Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/62810.
Pełny tekst źródłaDissertation (MEng)--University of Pretoria, 2017.
Chemical Engineering
MEng
Unrestricted
Baloyi, Vonani Michael. "Influence of guided inquiry-based laboratory activities on outcomes achieved in first-year physics". Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/62910.
Pełny tekst źródłaThesis (PhD)--University of Pretoria, 2017.
Science, Mathematics and Technology Education
PhD
Unrestricted
Esteve, Sendra María Consuelo. "REVISIÓN Y CONSIDERACIÓN DE UNA PRAXIS DEDICADA A OPTIMIZAR LA CALIDAD DE VIDA, CON EL USO DEL DISEÑO COMO CATALIZADOR DE LA INNOVACIÓN SOCIAL (2010-2015). ESTUDIOS DE CASOS". Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/62210.
Pełny tekst źródła[ES] Esta investigación tiene su punto de partida en la preocupación por la problemática medio ambiental del planeta, para tratar de establecer nuevos paradigmas que mejoren la calidad de vida de la sociedad actual, aportando una posible contribución a través del diseño. Se examinaran los casos de estudio de las Expo Shanghái 2010 y la Expo Milán 2015, junto a dos Summer workshops, realizados en el College of Design and Innovation Tongji University Shanghái (China) en los años 2012 y 2014, para detectar como el diseño es un actor importante de la innovación social. El presente estudio se divide en cuatro ejes de estudio: realidad, movimiento, acción e investigación futura. Realidad, examina la situación de nuestro planeta desde el punto de vista medio ambiental. Se inicia un discurso sobre el tema de innovación social y la relación de los diseñadores respecto a esta materia. Se define cuál es su rol como profesionales o docentes del diseño en la actualidad. Movimiento, analiza dos hitos en los que diseño es un exponente fundamental, la Expo Shanghái 2010, como punto de partida y la Expo Milán 2015, como punto final, para conocer como desde estas iniciativas culturales se tratan temas y se plantean soluciones a problemas concretos. Una profundiza en el estudio del uso del bambú como material ancestral y su uso en el mundo actual mejorando nuestra calidad de vida y la de nuestro entorno, en el segundo caso se revisa la problemática de los procesos de cómo optimizar el desarrollo de la alimentación mundial. Acción, estudia los resultados obtenidos en los Summer workshops realizados en 2012 y 2014, bajo título: IDSS workshop organized by College of Design and Innovation de la Tongji University (Shanghái, China) y DESIS-China and studio of TEKTAO en Shanghái, China. Esta tesis que plantea como el diseñador con su participación en algunos proyectos referencia, puede contribuir para el desarrollo de productos o servicios con un alto nivel de concienciación por el medio ambiente. Con el estudio del caso del Workshop realizado en 2014 en Chonming Island (China), titulado "Urban farming: Inside and Outside" y la Expo de Milán 2015, se concluye ésta investigación, aprendiendo del bagaje que se desprende de la relación del diseño con la innovación social. Investigación futura, para continuar, nos apoyaremos en la Red RISA (Red de Investigación de Saberes Ancestrales) con sede en Ibarra (Ecuador), que se dedicada a tareas relacionadas con la investigación y docencia, de la que soy miembro. Respecto a la segunda línea de trabajo a corto plazo se plantea un workshop para realizar con alumnos de la Etsid y de una universidad extranjera invitada, sobre la autoalimentación. Los temas que estamos estudiando coinciden en muchas ocasiones con un tema común, pero que se aborda desde diversas perspectivas, dando lugar a un "movimiento común de desarrollo". El esquema que he utilizado como hilo conductor de la presente tesis doctoral es una búsqueda de soluciones que se enfocan hacia una Investigación presente pero sobre todo futura. Parece muy ambicioso pero el objetivo a desarrollar es apasionante. Conocer "nuevas realidades" del comportamiento de algunos grupos humanos, nos conduce a detectar y focalizar sus mecanismos de funcionamiento. Puestos en marcha procesos de innovación social, se pone de manifiesto el desafío el posible uso de nuevos modelos de comportamiento. Lo que conduce a nuevos espacios de cambio en el ámbito de la sostenibilidad. Desde este planteamiento a los diseñadores se nos abre una nueva área de trabajo donde las soluciones desarrollan nuevas ideas en la unión producto-servicio. Según el Profesor Manzini, en su teoría de enfoque social, propone dejar de lado el individualismo: "Cuando decides empezar a hacer cosas con y por los otros, empiezas a mezclar lo que llamo la sustentabilidad ambiental con la social ". De esta fusión surge todo un ecosistema que da acces
[CAT] Aquesta investigació té el seu punt de partida en la problemática ambiental del planeta per tractar d'establir nous paradigmes que milloren la qualitat de vida de la societat actual, aportant una possible contribució a través del disseny. S'examinaran els casos d'estudi de l'Expo Shanghái 2010 i l'Expo Milan 2015, junt amb dos Summer Workshops realitzats el 2012 i el 2014 al College of Design and Innovation Tongji Universtity (Shanghái, Xina), per detectar com el disseny és un actor important de la innovació social. El present estudi es divideix en quatre eixos d'estudi: realitat, moviment, acció i investigació/recerca futura. Realitat, examina la situació del nostre planeta des del punt de vista mediambiental. S'inicia un discurs sobre el tema de la innovació social i la seua relació amb els dissenyadors definint quin és el paper d'aquests com a professionals o com a docents del disseny actual. Moviment, analitza dues fites importants en les quals el disseny és un exponent fonamental: l'Expo Shanghái 2010 com a punt de partida i l'Expo Milan 2015 com a punt final, per tal de conéixer com aquestes iniciatives culturals tracten temes y plantegen solucions a problemes concrets. La primera iniciativa profunditza en l'estudi de l'ús del bambú, un material ancestral, en el món actual per tal de millorar la nostra qualitat de vida i el nostre entorn. Mentre que la segona revisa la problemàtica dels procesos per optimitzar el desenvolupament sostenible de l'alimentació mundial. Acció, estudia els resultats obtinguts als Summer Workshops realitzats a Shanghái (Xina), als anys 2012 i 2014 sota els títols IDSS workshop organized by College of Design and Innovation de la Tongji University i DESIS-China and studio of TEKTAO. Ambdós es van realitzar al marc del Chongming Sustainable Community Project (Projecte Sostenible de la Comunitat de Chongming). Així, amb l'estudi del cas del workshop "Urban farming: inside and outside", realitzat a l'Illa de Chongming (Xina, 2014), i el de l'Expo de Milà 2015, conclou aquesta investigació aprenent del bagatge que es desprén de la relació del disseny amb la innovació social. Investigació futura, per continuar, ens recolzarem en la Red RISA (Red de Investigación de Saberes Ancestrales), amb la seu a Ibarra (Ecuador), dedicada a feines relacionades amb la investigació i la docència i de la qual forme part. Respecte a la segona línia de treball a curt termini, es planteja un workshop sobre autoalimentació per realitzar-lo amb alumnes de la ETSID i d'alguna Universitat extrangera convidada. Els temes que estem estudiant coincideixen en moltes ocasions amb un tema comú, encara que tractat des de diverses perspectives, originant un "moviment comú de desenvolupament". L'esquema que he utilitzat com a fil conductor de la present Tesi Doctoral és una recerca de solucions enfocades a una investigació present però també futura. Sembla molt ambiciós però l'objectiu a desenvolupar és apassionant. Conèixer "noves realitats" sobre el comportament d'alguns grups humans ens conduiex a detectar i focalitzar els seus mecanismes de funcionament. Engegant diversos procesos de innovació social es posa de manifest la possibiltat de nous models de comportament, la qual cosa produeix nous espais de canvi en l'àmbit de la sostenibilitat. Des d'aquest plantejament, als dissenyadors se'ns obri una nova àrea de treball on les solucions desenvolupen noves idees sobre la unió servei-producte. Segons el Professor Manzini i la seua teria de l'enfocament social, proposa l'abandonament de l'individualisme: "Quan decideixes començar a fer coses amb i pels altres, és quan comences a barrejar el que jo anomene la sustentabilitat ambiental amb la social ". D'aquesta fusió sorgeix tot un ecosistema que dóna accés a altres productes, sent només una part de tot el conjunt.
Esteve Sendra, MC. (2016). REVISIÓN Y CONSIDERACIÓN DE UNA PRAXIS DEDICADA A OPTIMIZAR LA CALIDAD DE VIDA, CON EL USO DEL DISEÑO COMO CATALIZADOR DE LA INNOVACIÓN SOCIAL (2010-2015). ESTUDIOS DE CASOS [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/62210
TESIS
Ceballos, Silva Eduardo. ""La Imagen Fílmica en el Arte Contemporáneo" Una Revisión Estética: Entre la Imagen Fílmica y la Imagen Materia". Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/62410.
Pełny tekst źródła[ES] Resumen de Tesis Doctoral: "La Imagen Fílmica en el Arte Contemporáneo" Una Revisión Estética: Entre la Imagen Fílmica y la Imagen Materia de Eduardo Ceballos Silva. La tesis doctoral de Eduardo Ceballos, reflexiona sobre los complejos efectos de re-significación de la imagen fílmica en el arte contemporáneo, y su incidencia en la consideración estética del producto resultante. En esta reflexión, se defiende la relevancia que tiene el arte conceptual en la re-significación artística, así como el proceso que ha desempeñado el concepto de apropiación en el arte contemporáneo. Partiendo de la consideración del ready made de Marcel Duchamp como punto inexcusable del surgimiento del apropiacionismo, se revisan y estudian de forma concreta las diferentes formas de apropiación de imágenes fílmicas en el arte contemporáneo. Estructuralmente, "La Imagen Fílmica en el Arte Contemporáneo", asume una doble condición teórico-práctica. En los primeros capítulos del mismo, se asientan los fundamentos conceptuales e históricos que vertebrarán una propuesta artística que será detallada en la segunda parte de esta investigación. Asimismo, la investigación que se ha llevado a cabo se decanta por una metodología de corte deductiva, ya que se parte de los aspectos y posiciones teórico-prácticos generales para llegar a lo particular. Es decir, se comienza por definir el concepto de apropiacionismo dentro de las artes visuales para, después, particularizar la investigación en el análisis de las diferentes formas de apropiación en la esfera estética y, de manera más concreta, en la utilización de la imagen fílmica dentro del contexto de las artes visuales contemporáneas. Para terminar con una propuesta artística a partir de los postulados teóricos investigados y que consistió en la realización de ocho series de obras en diferentes formatos y técnicas, hecha en un período de 7 años.
[CAT] Resum de Tesi Doctoral: "La Imatge Fílmica en l'Art Contemporani " Una Revisió Estètica: Entre la Imatge Fílmica i la Imatge Matèria d'Eduardo Ceballos Silva. La Tesi Doctoral d'Eduardo Ceballos, reflexiona sobre els complexos efectes de re-significació de la imatge fílmica en l'art contemporani, i la seua incidència en la consideració estètica del producte resultant. En esta reflexió, es defèn la rellevància que té l'art conceptual en la re-significació artística, així com el procés que ha exercit el concepte d'apropiació en l'art contemporani. Partint de la consideració del ready made de Marcel Duchamp com a punt inexcusable del sorgiment de l'apropiacionisme, es revisen i estudien en concret les diferents formes d'apropiació d'imatges fílmiques en l'art contemporani. Estructuralment, "La Imatge Fílmica en l'Art Contemporáni", assumix una doble condició teòrico-pràctica. En els primers capítols del mateix, s'assenten els fonaments conceptuals i històrics que vertebraran una proposta artística que serà detallada en la segona part d'esta investigació. Així mateix, la investigació que s'ha dut a fi es decanta per una metodologia d'estil deductiva, ja que es parteix dels aspectes i posicions teòrics-pràctics generals per a arribar al particular. És a dir, es comença per definir el concepte d'apropiacionisme dins de les arts visuals per a, després, particularitzar la investigació en l'anàlisi de les diferents formes d'apropiació en l'esfera estètica i, de manera més concreta, en la utilització de la imatge fílmica dins del context de les arts visuals contemporànies. Per a acabar amb una proposta artística a partir dels postulats teòrics investigats i que va consistir en la realització de huit sèries d'obres en diferents formats i tècniques, feta en un període de set anys.
Ceballos Silva, E. (2016). "La Imagen Fílmica en el Arte Contemporáneo" Una Revisión Estética: Entre la Imagen Fílmica y la Imagen Materia [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/62410
TESIS
Manafu, Sylvia. "The design and implementation of knowledge management systems in academic libraries to enable knowledge management processes : a case study of Makerere University Library". Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/62110.
Pełny tekst źródłaMini Dissertation (MIT)--University of Pretoria, 2016.
Information Science
MIT
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Corso, Giovanni. "Searching for novel diagnostic-prognostic biomarkers in gastric cancer". Tese, Faculdade de Medicina da Universidade do Porto, 2011. http://hdl.handle.net/10216/62210.
Pełny tekst źródłaPinto, João Filipe Cruz Correia. "Avaliação da amplificação do gene HER 2, determinada por Fish e Sish, em casos com score 0/1 + por imunohistoquímica". Dissertação, Instituto de Ciências Biomédicas Abel Salazar, 2010. http://hdl.handle.net/10216/62310.
Pełny tekst źródłaМеньщиков, В. А. "Совершенствование технологии переработки медьсодержащего сырья в ТРОФ-конвертере : диссертация на соискание ученой степени кандидата технических наук : 05.16.02". Thesis, б. и, 2018. http://hdl.handle.net/10995/62610.
Pełny tekst źródłaBONFANTI, Sara. "Social divides and transnational values. En-gendering homes in the intergenerational narratives of punjabi disporans in Northern Italy". Doctoral thesis, Università degli studi di Bergamo, 2016. http://hdl.handle.net/10446/62410.
Pełny tekst źródłaBURINI, EMANUELA (ORCID:0000-0001-9287-8467). "La modernità dello sguardo di Giacomo Costantino Beltrami nelle lettere odeporiche". Doctoral thesis, Università degli studi di Bergamo, 2016. http://hdl.handle.net/10446/62510.
Pełny tekst źródłaGordillo, Castillo Nelly. "Contributions to Automatic and Unsupervised MRI Brain Tumor Segmentation: A New Fuzzy Approach". Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/6210.
Pełny tekst źródłaIncreasingly, magnetic resonance imaging (MRI) scan is being used for suspected brain tumors, because in addition tooutline the normal brain structures in great detail, has a high sensitivity for detecting the presence of, or changes within, a tumor.Currently most of the process related to brain tumors such as diagnosis, therapy, and surgery planning are based on its previoussegmentation from MRI. Brain tumor segmentation from MRI is a challenging task that involves various disciplines. The tumors to besegmented are anatomical structures, which are often non-rigid and complex in shape, vary greatly in size and position, and exhibitconsiderable variability from patient to patient. Moreover, the task of labeling brain tumors in MRI is highly time consuming and thereexists significant variation between the labels produced by different experts.
The challenges associated with automated brain tumor segmentation have given rise to many different segmentationapproaches. Although the reported accuracy of the proposed methods is promising, these approaches have not gained wide acceptance among the neuroscientists for every day clinical practice. Two of the principal reasons are the lack of standardizedprocedures, and the deficiency of the existing methods to assist medical decision following a technician way of work.
For a brain tumor segmentation system has acceptance among neuroscientists in clinical practice, it should supportmedical decision in a transparent and interpretable way emulating the role of a technician, considering his experience and knowledge. This includes knowledge of the expected appearance, location, variability of normal anatomy, bilateral symmetry, andknowledge about the expected intensities of different tissues. The image related problems and the variability in tissue distribution among individuals in the human population makes that some degree of uncertainty must be considered together with segmentationresults.
A possible solution for designing complex systems, in which it is required to incorporate the experience of an expert, or the related concepts appear uncertain, is the use of soft computing techniques such as fuzzy systems. An important advantage of fuzzysystems is their ability for handling vague information.
In this work, it is proposed the development of a method to assist the specialists in the process of segmenting braintumors. The main objective is to develop a system that can follow a technician way of work, considering his experience andknowledge. More concretely, it is presented a fully automatic and unsupervised segmentation method, which considers humanknowledge. The method successfully manages the ambiguity of MR image features being capable of describing knowledge about thetumors in vague terms. The method was developed making use of the powerful tools provided by fuzzy set theory.
This thesis presents a step-by-step methodology for the automatic MRI brain tumor segmentation. For achieving the fullyautomatic and unsupervised segmentation, objective measures are delineated by means of adaptive histogram thresholds for defining the non-tumor and tumor populations. For defining the tumor population a symmetry analysis is conducted.
The proposed approach introduces a new way to automatically define the membership functions from the histogram. The proposed membership functions are designed to adapt well to the MRI data and efficiently separate the populations. Since any post-processing is needed, and the unique pre-processing operation is the skull stripping, the proposed segmentation technique reduces the computational times. The proposed approach is quantitatively comparable to the most accurate existing methods, even thoughthe segmentation is done in 2D.
伊藤, 恵美子, i Emiko Ito. "マレー文化圏における断り表現の比較 : ジャワ語・インドネシア語・マレーシア語の発話の順序に関して". 名古屋大学大学院国際開発研究科, 2005. http://hdl.handle.net/2237/6210.
Pełny tekst źródłaCollette, Daniel. "Stoicism in Descartes, Pascal, and Spinoza: Examining Neostoicism’s Influence in the Seventeenth Century". Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6210.
Pełny tekst źródłaAl, Hadi Mouafak. "Motion of the foot inside a hockey skate: As measured from bone, skin, and skate markers". Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6210.
Pełny tekst źródłaFenacci, Damon. "Compiler-driven data layout transformations for network applications". Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/6210.
Pełny tekst źródłaAli, Mohammad. "Teachers’ and students’ perspectives on English language assessment in the secondary English Language Teaching (ELT) curriculum in Bangladesh". Thesis, University of Canterbury. Literacies and Arts in Education, 2011. http://hdl.handle.net/10092/6210.
Pełny tekst źródłaSilversides, Ian. "Détection de l'initiation de la délamination des matériaux composites par suivi de l'émission acoustique". Mémoire, Université de Sherbrooke, 2012. http://hdl.handle.net/11143/6210.
Pełny tekst źródłaMota, Ilóida Manuela Augusto da. "As relações de género e o sistema de dote na Índia : o caso de Hyderabad". Master's thesis, Instituto Superior de Economia e Gestão, 2013. http://hdl.handle.net/10400.5/6210.
Pełny tekst źródłaA presente dissertação analisa as relações de género e o sistema de dote na Índia, cruzando estas temáticas com o desenvolvimento e a educação. Um dos objectivos principais passa por perceber a influência da educação nas representações sociais das mulheres indianas sobre as relações de género e o sistema de dote. Por forma a responder a esta questão recorremos a bibliografia que discorre sobre os temas tratados, bem como a indicadores estatísticos sobre as temáticas do desenvolvimento humano e da igualdade de género, e a um trabalho de campo que consistiu na recolha de entrevistas na cidade de Hyderabad (Sul da Índia).
The present dissertation analyzes the gender relations and the dowry system in India, by interlinking these themes with development and education. One of the main purposes is to understand the influence of education on the Indian women’s social representations about the gender relations and the dowry system. In order to answer this question, we used not only bibliography about the subject, but also the analysis of development and gender equality indicators as well as the results of a field work based on interviews in the city of Hyderabad (South of India).
Tantas, Caldas Susy Isabel. "Edentulismo parcial o total, y la calidad de vida en pacientes adultos mayores del Departamento de Geriatría del Hospital Nacional Arzobispo Loayza, año 2016". Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2017. https://hdl.handle.net/20.500.12672/6210.
Pełny tekst źródłaTesis
Mnyaka, Sinazo. "Assessment of the contributions of water allocation reforms to achieving equitable access to water by smallholder emerging farmers in the Breede-Gouritz catchment management agency". University of the Western Cape, 2018. http://hdl.handle.net/11394/6210.
Pełny tekst źródłaThe National Water Act of (1998) of South Africa has a goal of achieving equitable access to water resources, as well as achieving environmental sustainability and efficient use of water. Consequently, water resources management is being reformed to ensure the achievement of these principles. Allocation of water through granting of licenses for abstraction and storage of water has been implemented to ensure that historically disadvantaged individuals (HDIs) have access to water and to promote sustainable, efficient and beneficial use of water resources for the whole country. The Water Allocation Reform Policy is a tool that is used to implement the goal of the National Water Act and it is guided by the set objectives, which are to allocate 30% of all water to previously disadvantaged individuals by 2014, 45% by 2019 and 60% by 2025. Despite these efforts, there is evidence that smallholder emerging farmers who are part of the disadvantaged groups do not have access to water for productive use. Many studies conducted so far have shown that equitable, sustainable and efficient water allocation has not been achieved in South Africa. It is not very clear why this trend is continuing despite all efforts to the contrary. The aim of the study was to assess the contribution of the reforms of water allocation systems towards increasing access to water by historically disadvantaged groups in Barrydale area in the Western Cape Province, South Africa. Interviews were conducted to determine how the reforms have influenced access to water for productive use by smallholder emerging farmers. Document review was undertaken to determine the progress in the implementation of the water allocation reform by the Breede-Overberg Catchment Management Agency (BGCMA). The results indicated that small-scale farmers do not have access to water for agricultural activities in Barrydale due to lack of components, which include financial funding, access to farming infrastructure and skills. The BGCMA has not completed the implementation of the Water Allocation Reform and as a result, mechanisms initiated by the BGCMA have not resulted in improved access to water by HDIs. The outcome of the study indicated a lack of implementation of the water allocation reforms by the BGCMA, hence there is still no increase to water access for agricultural use by HDIs.
Pasa, Giovana Savitri. "Uma abordagem para avaliar a consistência teórica de sistemas produtivos". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2004. http://hdl.handle.net/10183/6210.
Pełny tekst źródłaTang, Laura. "Observations on myxozoans (Myzozoa: Myxosporea) and the spatial and temporal variation in parasite assemblages of the nosestripe klipfish, Muraenoclinus dorsalis Bleeke, 1860 (Perciformes: Clinidae)". Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/6210.
Pełny tekst źródłaDubé, Richard. "Focus of attention : a behavioral perspective on media credibility /". Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/6210.
Pełny tekst źródła